Improvements in filters,申请号GB19380037990-传众专利搜索

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发明名称	Improvements in filters
摘要
申请公布号	GB524385(A)	申请公布日期	1940.08.06
申请号	GB19380037990	申请日期	1938.12.31
申请人	WILLIAM PATERSON;OSCAR CARL KERRISON	发明人
分类号	B01D29/15;B01D37/02	主分类号	B01D29/15
代理机构		代理人
主权项
地址

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